+++ /dev/null
-/* $Id$
- * captive media (cdrom/disk) emulation for reactos
- * Copyright (C) 2002 Jan Kratochvil <project-captive@jankratochvil.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; exactly version 2 of June 1991 is required
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-#include "config.h"
-
-#include "media.h" /* self */
-#include "captive/storage.h" /* self */
-#include <glib/gmessages.h>
-#include "reactos/ddk/class2.h" /* for DEVICE_EXTENSION */
-#include "reactos/ddk/status.h"
-#include "reactos/ddk/iofuncs.h" /* for IoIsErrorUserInduced() */
-#include "captive/macros.h"
-#include "reactos/ddk/mmfuncs.h" /* for MmGetMdlByteCount() */
-#include "captive/unicode.h"
-#include <glib/gmacros.h>
-#include "reactos/structs.h" /* for PREVENT_MEDIA_REMOVAL */
-#include "captive/options.h"
-
-
-GIOChannel *captive_image_iochannel;
-guint64 captive_image_size;
-
-
-static gboolean validate_DeviceObject(DEVICE_OBJECT *DeviceObject)
-{
-DEVICE_EXTENSION *DeviceExtension;
-DISK_GEOMETRY *DiskGeometry;
-IO_SCSI_CAPABILITIES *PortCapabilities;
-struct captive_DriverObject *captive_DriverObject;
-
- g_return_val_if_fail(DeviceObject!=NULL,FALSE);
-
- captive_DriverObject=(struct captive_DriverObject *)DeviceObject->DriverObject;
- DeviceExtension=DeviceObject->DeviceExtension;
-
- DiskGeometry=DeviceExtension->DiskGeometry;
- g_return_val_if_fail(DiskGeometry==&captive_DriverObject->DiskGeometry,FALSE);
- g_return_val_if_fail(DiskGeometry->MediaType==captive_DriverObject->DiskGeometry_check.MediaType,FALSE);
- g_return_val_if_fail(DiskGeometry->TracksPerCylinder==captive_DriverObject->DiskGeometry_check.TracksPerCylinder,FALSE);
- g_return_val_if_fail(DiskGeometry->SectorsPerTrack==captive_DriverObject->DiskGeometry_check.SectorsPerTrack,FALSE);
- g_return_val_if_fail(DiskGeometry->BytesPerSector==captive_DriverObject->DiskGeometry_check.BytesPerSector,FALSE);
- g_return_val_if_fail(DiskGeometry->Cylinders.QuadPart==captive_DriverObject->DiskGeometry_check.Cylinders.QuadPart,FALSE);
- g_return_val_if_fail(DeviceExtension->PartitionLength.QuadPart==(gint64)captive_image_size,FALSE);
-
- PortCapabilities=DeviceExtension->PortCapabilities;
- g_return_val_if_fail(PortCapabilities==&captive_DriverObject->PortCapabilities,FALSE);
- g_return_val_if_fail(PortCapabilities->Length==captive_DriverObject->PortCapabilities_check.Length,FALSE);
- g_return_val_if_fail(PortCapabilities->MaximumTransferLength==captive_DriverObject->PortCapabilities_check.MaximumTransferLength,FALSE);
- g_return_val_if_fail(PortCapabilities->MaximumPhysicalPages==captive_DriverObject->PortCapabilities_check.MaximumPhysicalPages,FALSE);
- g_return_val_if_fail(PortCapabilities->SupportedAsynchronousEvents==captive_DriverObject->PortCapabilities_check.SupportedAsynchronousEvents,FALSE);
- g_return_val_if_fail(PortCapabilities->AlignmentMask==captive_DriverObject->PortCapabilities_check.AlignmentMask,FALSE);
- g_return_val_if_fail(PortCapabilities->TaggedQueuing==captive_DriverObject->PortCapabilities_check.TaggedQueuing,FALSE);
- g_return_val_if_fail(PortCapabilities->AdapterScansDown==captive_DriverObject->PortCapabilities_check.AdapterScansDown,FALSE);
- g_return_val_if_fail(PortCapabilities->AdapterUsesPio==captive_DriverObject->PortCapabilities_check.AdapterUsesPio,FALSE);
-
- return TRUE;
-}
-
-
-static NTSTATUS MajorFunction_Irp_finish(DEVICE_OBJECT *DeviceObject,IRP *Irp)
-{
-NTSTATUS r;
-
- g_return_val_if_fail(TRUE==validate_DeviceObject(DeviceObject),STATUS_INVALID_PARAMETER);
- g_return_val_if_fail(Irp!=NULL,STATUS_INVALID_PARAMETER);
-
- /* required for removable media only */
- if (!NT_SUCCESS(Irp->IoStatus.Status) && IoIsErrorUserInduced(Irp->IoStatus.Status)) {
- g_assert(Irp->Tail.Overlay.Thread!=NULL); /* FIXME: Error should be postponed to first !=NULL Irp later */
- IoSetHardErrorOrVerifyDevice(Irp,DeviceObject);
- Irp->IoStatus.Information=0; /* may got set during some processing before error occured */
- }
-
- /* IoCompleteRequest() will do 'IoFreeIrp(Irp);'!
- * 'IoStatus.Status' must be saved before its invocation!
- */
- r=Irp->IoStatus.Status;
- IoCompleteRequest(Irp,IO_NO_INCREMENT);
- return r;
-}
-
-
-/* FIXME: We should comply with PDRIVER_DISPATCH prototype but unfortunately
- * CAPTIVE_STDCALL prevents us to do so at least in RedHat gcc-3.2-4 (gcc bug?).
- */
-#define MajorFunction_DEVICE_CONTROL ((PDRIVER_DISPATCH)MajorFunction_DEVICE_CONTROL_func)
-static NTSTATUS CAPTIVE_STDCALL MajorFunction_DEVICE_CONTROL_func(IN DEVICE_OBJECT *DeviceObject,IN IRP *Irp)
-{
-struct captive_DriverObject *captive_DriverObject;
-IO_STACK_LOCATION *IrpStack;
-
- g_return_val_if_fail(TRUE==validate_DeviceObject(DeviceObject),STATUS_INVALID_PARAMETER);
- g_return_val_if_fail(Irp!=NULL,STATUS_INVALID_PARAMETER);
-
- captive_DriverObject=(struct captive_DriverObject *)DeviceObject->DriverObject;
-
- Irp->IoStatus.Information=0; /* request-specific, may get overriden later */
- IrpStack=IoGetCurrentIrpStackLocation(Irp);
- g_assert(IrpStack->MajorFunction==IRP_MJ_DEVICE_CONTROL);
- g_assert(IrpStack->MinorFunction==0);
-
- switch (IrpStack->Parameters.DeviceIoControl.IoControlCode) {
-
- case IOCTL_CDROM_GET_LAST_SESSION:
- /* Nothing interesting to see, move along.
- * FIXME: This call is somehow multisession related - must we care?
- */
- /* PASSTHRU */
-
- case IOCTL_CDROM_READ_TOC: {
-CDROM_TOC *CdromToc;
-
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(CDROM_TOC)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(CDROM_TOC);
- g_assert_not_reached();
- goto done;
- }
- CdromToc=(CDROM_TOC *)Irp->AssociatedIrp.SystemBuffer;
- CAPTIVE_MEMZERO(CdromToc);
- CdromToc->Length[0]=((sizeof(*CdromToc)-2)>>0U)&0xFFU; /* little-endian */
- CdromToc->Length[1]=((sizeof(*CdromToc)-2)>>8U)&0xFFU;
- CdromToc->FirstTrack=0; /* one track; TOC_LAST_TRACK does not count */
- CdromToc->LastTrack =0; /* one track; TOC_LAST_TRACK does not count */
- CdromToc->TrackData[0].Control=TOC_DATA_TRACK;
- CdromToc->TrackData[0].Adr=0; /* Q-subchannel subinfo */
- CdromToc->TrackData[0].TrackNumber=0;
- CdromToc->TrackData[0].Address[0]=0>>24U; /* LBA offset; big-endian */
- CdromToc->TrackData[0].Address[1]=0>>16U;
- CdromToc->TrackData[0].Address[2]=0>> 8U;
- CdromToc->TrackData[0].Address[3]=0>> 0U;
- CdromToc->TrackData[1].Control=0;
- CdromToc->TrackData[1].Adr=0; /* Q-subchannel subinfo */
- CdromToc->TrackData[1].TrackNumber=TOC_LAST_TRACK;
- /* FIXME: should we put the captive_image_size to TOC_LAST_TRACK? */
- CdromToc->TrackData[1].Address[0]=(captive_image_size/512)>>24U; /* LBA offset; big-endian */
- CdromToc->TrackData[1].Address[1]=(captive_image_size/512)>>16U;
- CdromToc->TrackData[1].Address[2]=(captive_image_size/512)>> 8U;
- CdromToc->TrackData[1].Address[3]=(captive_image_size/512)>> 0U;
-
- Irp->IoStatus.Information=sizeof(DISK_GEOMETRY);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- } break;
-
- case IOCTL_CDROM_GET_DRIVE_GEOMETRY:
- case IOCTL_DISK_GET_DRIVE_GEOMETRY:
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(DISK_GEOMETRY)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(DISK_GEOMETRY);
- g_assert_not_reached();
- goto done;
- }
- *(DISK_GEOMETRY *)Irp->AssociatedIrp.SystemBuffer=captive_DriverObject->DiskGeometry;
- Irp->IoStatus.Information=sizeof(DISK_GEOMETRY);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- break;
-
- case IOCTL_CDROM_CHECK_VERIFY:
- case IOCTL_DISK_CHECK_VERIFY:
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength) {
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(ULONG)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(ULONG);
- g_assert_not_reached();
- goto done;
- }
- *(ULONG *)Irp->AssociatedIrp.SystemBuffer=0; /* MediaChangeCount */
- Irp->IoStatus.Information=sizeof(ULONG);
- }
- else {
- Irp->IoStatus.Information=0;
- }
- Irp->IoStatus.Status=STATUS_SUCCESS;
- break;
-
- case IOCTL_SCSI_GET_CAPABILITIES:
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(IO_SCSI_CAPABILITIES)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(IO_SCSI_CAPABILITIES);
- g_assert_not_reached();
- goto done;
- }
- *(IO_SCSI_CAPABILITIES *)Irp->AssociatedIrp.SystemBuffer=captive_DriverObject->PortCapabilities;
- Irp->IoStatus.Information=sizeof(IO_SCSI_CAPABILITIES);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- break;
-
- case IOCTL_DISK_GET_PARTITION_INFO: {
-PARTITION_INFORMATION *PartitionInformation;
-
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(PARTITION_INFORMATION)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(PARTITION_INFORMATION);
- g_assert_not_reached();
- goto done;
- }
- PartitionInformation=(PARTITION_INFORMATION *)Irp->AssociatedIrp.SystemBuffer;
- PartitionInformation->StartingOffset.QuadPart=0;
- PartitionInformation->PartitionLength.QuadPart=captive_image_size; /* unit=bytes */
- PartitionInformation->HiddenSectors=0; /* FIXME: real image disk offset */
- PartitionInformation->PartitionNumber=1;
- PartitionInformation->PartitionType=0; /* FIXME: meaning? */
- PartitionInformation->BootIndicator=TRUE;
- PartitionInformation->RecognizedPartition=TRUE;
- PartitionInformation->RewritePartition=FALSE; /* FIXME: meaning? */
- Irp->IoStatus.Information=sizeof(PARTITION_INFORMATION);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- } break;
-
- case IOCTL_DISK_GET_PARTITION_INFO_EX: {
-PARTITION_INFORMATION_EX *PartitionInformationEx;
-
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(PARTITION_INFORMATION_EX)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(PARTITION_INFORMATION_EX);
- g_assert_not_reached();
- goto done;
- }
- PartitionInformationEx=(PARTITION_INFORMATION_EX *)Irp->AssociatedIrp.SystemBuffer;
- PartitionInformationEx->PartitionStyle=PARTITION_STYLE_RAW; /* not MBR or GPT */
- PartitionInformationEx->StartingOffset.QuadPart=0;
- PartitionInformationEx->PartitionLength.QuadPart=captive_image_size; /* unit=bytes */
- PartitionInformationEx->PartitionNumber=0; /* FIXME: what number? */
- PartitionInformationEx->RewritePartition=FALSE; /* FIXME: meaning? */
- Irp->IoStatus.Information=sizeof(PARTITION_INFORMATION_EX);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- } break;
-
- case IOCTL_STORAGE_GET_HOTPLUG_INFO:
- Irp->IoStatus.Status=STATUS_NOT_SUPPORTED;
- break;
-
- case IOCTL_DISK_IS_WRITABLE:
- Irp->IoStatus.Information=0;
- switch (captive_options->rwmode) {
- case CAPTIVE_OPTION_RWMODE_RO: Irp->IoStatus.Status=STATUS_MEDIA_WRITE_PROTECTED; break;
- case CAPTIVE_OPTION_RWMODE_BLIND: Irp->IoStatus.Status=STATUS_SUCCESS; break;
- case CAPTIVE_OPTION_RWMODE_RW: Irp->IoStatus.Status=STATUS_SUCCESS; break;
- default: g_assert_not_reached();
- }
- break;
-
- case IOCTL_DISK_MEDIA_REMOVAL: {
-PREVENT_MEDIA_REMOVAL *PreventMediaRemoval;
-
- /* FIXME: ntfs.sys calls this function with empty buffer; dunno what it means.
- */
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength==0) {
- g_log(G_LOG_DOMAIN,G_LOG_LEVEL_DEBUG,"%s: IOCTL_DISK_MEDIA_REMOVAL with empty buffer",G_STRLOC);
- Irp->IoStatus.Information=0;
- Irp->IoStatus.Status=STATUS_SUCCESS;
- break;
- }
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(PREVENT_MEDIA_REMOVAL)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(PREVENT_MEDIA_REMOVAL);
- g_assert_not_reached();
- goto done;
- }
- PreventMediaRemoval=(PREVENT_MEDIA_REMOVAL *)Irp->AssociatedIrp.SystemBuffer;
- g_log(G_LOG_DOMAIN,G_LOG_LEVEL_DEBUG,"%s: IOCTL_DISK_MEDIA_REMOVAL now %s",
- G_STRLOC,(PreventMediaRemoval->PreventMediaRemoval ? "TRUE" : "FALSE"));
-
- Irp->IoStatus.Information=sizeof(PREVENT_MEDIA_REMOVAL);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- } break;
-
- case IOCTL_DISK_CONTROLLER_NUMBER: {
-DISK_CONTROLLER_NUMBER *DiskControllerNumber;
-
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(DISK_CONTROLLER_NUMBER)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(DISK_CONTROLLER_NUMBER);
- g_assert_not_reached();
- goto done;
- }
- DiskControllerNumber=(DISK_CONTROLLER_NUMBER *)Irp->AssociatedIrp.SystemBuffer;
- DiskControllerNumber->ControllerNumber=0; /* FIXME: based on 0 or 1? */
- DiskControllerNumber->DiskNumber=0; /* FIXME: based on 0 or 1? */
-
- Irp->IoStatus.Information=sizeof(DISK_CONTROLLER_NUMBER);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- } break;
-
- case IOCTL_DISK_GET_LENGTH_INFO: {
-GET_LENGTH_INFORMATION *GetLengthInformation;
-
- if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength<sizeof(GET_LENGTH_INFORMATION)) {
- Irp->IoStatus.Status=STATUS_BUFFER_TOO_SMALL;
- Irp->IoStatus.Information=sizeof(GET_LENGTH_INFORMATION);
- g_assert_not_reached();
- goto done;
- }
- GetLengthInformation=(GET_LENGTH_INFORMATION *)Irp->AssociatedIrp.SystemBuffer;
- GetLengthInformation->Length.QuadPart=captive_image_size;
-
- Irp->IoStatus.Information=sizeof(GET_LENGTH_INFORMATION);
- Irp->IoStatus.Status=STATUS_SUCCESS;
- } break;
-
- case 0x00664016:
- g_error("%s: Invalid media IOCTL 0x%08lx - by NtfsFixDataError()",G_STRLOC,
- (unsigned long)IrpStack->Parameters.DeviceIoControl.IoControlCode);
- /* FALLTHRU */
-
- default:
- g_error("%s: Invalid media IOCTL 0x%08lX",G_STRLOC,
- (unsigned long)IrpStack->Parameters.DeviceIoControl.IoControlCode);
- Irp->IoStatus.Status=STATUS_INVALID_DEVICE_REQUEST;
- g_assert_not_reached();
- goto done;
- }
- /* PASSTHRU */
-
-done: /* 'err:' but we flow here even during success */
- return MajorFunction_Irp_finish(DeviceObject,Irp);
-}
-
-
-struct MajorFunction_READ_WRITE_func_Parameters {
- ULONG Length;
- ULONG Key;
- LARGE_INTEGER ByteOffset;
- };
-
-/* FIXME: We should comply with PDRIVER_DISPATCH prototype but unfortunately
- * CAPTIVE_STDCALL prevents us to do so at least in RedHat gcc-3.2-4 (gcc bug?).
- */
-#define MajorFunction_READ_WRITE ((PDRIVER_DISPATCH)MajorFunction_READ_WRITE_func)
-static NTSTATUS CAPTIVE_STDCALL MajorFunction_READ_WRITE_func(IN DEVICE_OBJECT *DeviceObject,IN IRP *Irp)
-{
-IO_STACK_LOCATION *IrpStack;
-gpointer buffer=NULL;
-GIOStatus erriostatus;
-struct captive_DriverObject *captive_DriverObject;
-const struct MajorFunction_READ_WRITE_func_Parameters *Parameters=NULL; /* Prevent: `Parameters' might be used uninitialized */
-
- g_return_val_if_fail(TRUE==validate_DeviceObject(DeviceObject),STATUS_INVALID_PARAMETER);
- g_return_val_if_fail(Irp!=NULL,STATUS_INVALID_PARAMETER);
-
- captive_DriverObject=(struct captive_DriverObject *)DeviceObject->DriverObject;
-
- Irp->IoStatus.Information=0; /* request-specific, may get overriden later */
- IrpStack=IoGetCurrentIrpStackLocation(Irp);
- g_assert(IrpStack->MajorFunction==IRP_MJ_READ || IrpStack->MajorFunction==IRP_MJ_WRITE);
- g_assert(IrpStack->MinorFunction==0);
-
-#define READ_WRITE_ASSERT_PARAMETERS_OFFSET(struct_a,struct_b,member) \
- g_assert(G_STRUCT_OFFSET(typeof(IrpStack->Parameters.struct_a),member) \
- ==G_STRUCT_OFFSET(typeof(IrpStack->Parameters.struct_b),member))
- READ_WRITE_ASSERT_PARAMETERS_OFFSET(Read,Write,Length);
- READ_WRITE_ASSERT_PARAMETERS_OFFSET(Read,Write,Key);
- READ_WRITE_ASSERT_PARAMETERS_OFFSET(Read,Write,ByteOffset);
- READ_WRITE_ASSERT_PARAMETERS_OFFSET(Read,Write,ByteOffset.QuadPart);
-#undef READ_WRITE_ASSERT_PARAMETERS_OFFSET
-
- switch (IrpStack->MajorFunction) {
- case IRP_MJ_READ: Parameters=(const struct MajorFunction_READ_WRITE_func_Parameters *)&IrpStack->Parameters.Read; break;
- case IRP_MJ_WRITE: Parameters=(const struct MajorFunction_READ_WRITE_func_Parameters *)&IrpStack->Parameters.Write; break;
- default: g_assert_not_reached();
- }
-
- /* Autodetect 'buffer' as we are !DO_BUFFERED_IO && !DO_DIRECT_IO hybrid */
- if (Irp->UserBuffer) {
- g_assert(buffer==NULL);
- buffer=Irp->UserBuffer;
- }
- /* Forbid both IRP_BUFFERED_IO and IRP_ASSOCIATED_IRP as it should be IMO invalid state. */
- g_assert(!((Irp->Flags & IRP_BUFFERED_IO) && (Irp->Flags & IRP_ASSOCIATED_IRP)));
- if (Irp->Flags & IRP_BUFFERED_IO && Irp->AssociatedIrp.SystemBuffer) {
- g_assert(buffer==NULL);
- buffer=Irp->AssociatedIrp.SystemBuffer;
- }
- if (Irp->MdlAddress) {
- /* See comment at ntoskrnl/io/buildirp.c/IoBuildSynchronousFsdRequestWithMdl()
- * initialization of 'Irp->UserBuffer'.
- */
- g_assert(buffer==MmGetSystemAddressForMdl(Irp->MdlAddress) || buffer==NULL);
- g_assert(Parameters->Length<=MmGetMdlByteCount(Irp->MdlAddress));
- buffer=MmGetSystemAddressForMdl(Irp->MdlAddress);
- }
- g_assert(buffer!=NULL);
-
- g_log(G_LOG_DOMAIN,G_LOG_LEVEL_DEBUG,"%s: %s: ByteOffset=0x%llX,Length=0x%lX",
- G_STRLOC,(IrpStack->MajorFunction==IRP_MJ_READ ? "IRP_MJ_READ" : "IRP_MJ_WRITE"),
- (guint64)Parameters->ByteOffset.QuadPart,(gulong)Parameters->Length);
-
- erriostatus=g_io_channel_seek_position(captive_image_iochannel,
- Parameters->ByteOffset.QuadPart, /* offset */
- G_SEEK_SET, /* type */
- NULL); /* error */
- g_assert(erriostatus==G_IO_STATUS_NORMAL);
-
- switch (IrpStack->MajorFunction) {
- case IRP_MJ_READ: {
-gsize bytesread;
-
- erriostatus=g_io_channel_read_chars(captive_image_iochannel,
- buffer, /* buf */
- Parameters->Length, /* count */
- &bytesread, /* bytesread */
- NULL); /* error */
- g_assert(erriostatus==G_IO_STATUS_NORMAL);
- g_assert(bytesread==Parameters->Length);
- } break;
-
- case IRP_MJ_WRITE: {
-gsize byteswritten;
-
- erriostatus=g_io_channel_write_chars(captive_image_iochannel,
- buffer, /* buf */
- Parameters->Length, /* count */
- &byteswritten, /* byteswritten */
- NULL); /* error */
- g_assert(erriostatus==G_IO_STATUS_NORMAL);
- g_assert(byteswritten==Parameters->Length);
- } break;
-
- default: g_assert_not_reached();
- }
-
- Irp->IoStatus.Information=Parameters->Length;
- Irp->IoStatus.Status=STATUS_SUCCESS;
-
- /* PASSTHRU */
-/* done: */ /* 'err:' but we flow here even during success */
- return MajorFunction_Irp_finish(DeviceObject,Irp);
-}
-
-
-/* FIXME: We should comply with PDRIVER_DISPATCH prototype but unfortunately
- * CAPTIVE_STDCALL prevents us to do so at least in RedHat gcc-3.2-4 (gcc bug?).
- */
-#define MajorFunction_SHUTDOWN ((PDRIVER_DISPATCH)MajorFunction_SHUTDOWN_func)
-static NTSTATUS CAPTIVE_STDCALL MajorFunction_SHUTDOWN_func(IN DEVICE_OBJECT *DeviceObject,IN IRP *Irp)
-{
-IO_STACK_LOCATION *IrpStack;
-GIOStatus erriostatus;
-struct captive_DriverObject *captive_DriverObject;
-
- g_return_val_if_fail(TRUE==validate_DeviceObject(DeviceObject),STATUS_INVALID_PARAMETER);
- g_return_val_if_fail(Irp!=NULL,STATUS_INVALID_PARAMETER);
-
- captive_DriverObject=(struct captive_DriverObject *)DeviceObject->DriverObject;
-
- IrpStack=IoGetCurrentIrpStackLocation(Irp);
- g_assert(IrpStack->MajorFunction==IRP_MJ_SHUTDOWN || IrpStack->MajorFunction==IRP_MJ_FLUSH_BUFFERS);
- g_assert(IrpStack->MinorFunction==0);
-
- /* libcaptive is not authorized to shutdown 'captive_image_channel'. */
- erriostatus=g_io_channel_flush(
- captive_image_iochannel, /* channel */
- NULL); /* error */
- g_assert(erriostatus==G_IO_STATUS_NORMAL);
-
- Irp->IoStatus.Information=0;
- Irp->IoStatus.Status=STATUS_SUCCESS;
-
- return MajorFunction_Irp_finish(DeviceObject,Irp);
-}
-
-
-/* FLUSH_BUFFERS has exactly the functionality for us. */
-#define MajorFunction_FLUSH_BUFFERS MajorFunction_SHUTDOWN
-
-
-/* similiar to drivers/storage/cdrom/cdrom.c/DriverEntry()->...
- * ...->CdromClassCreateDeviceObject()->
- * ->reactos/drivers/storage/class2/class2.c/ScsiClassCreateDeviceObject()
- * We should be driving a lower layer PortDevice but currently we
- * do not provide it, I hope W32 filesystems don't touch it.
- */
-NTSTATUS captive_media_DriverEntry(struct captive_DriverObject *captive_DriverObject,PUNICODE_STRING RegistryPath)
-{
-DRIVER_OBJECT *DriverObject;
-DEVICE_OBJECT *DeviceObject;
-DEVICE_EXTENSION *DeviceExtension;
-NTSTATUS err;
-
- g_return_val_if_fail(captive_DriverObject!=NULL,STATUS_INVALID_PARAMETER);
- g_return_val_if_fail(RegistryPath!=NULL,STATUS_INVALID_PARAMETER);
-
- DriverObject=(DRIVER_OBJECT *)captive_DriverObject;
-
- err=IoCreateDevice(
- DriverObject, /* DriverObject */
- sizeof(DEVICE_EXTENSION), /* DeviceExtensionSize; additional storage not used */
- captive_utf8_to_UnicodeString_alloca(captive_DriverObject->DeviceName_utf8), /* DeviceName */
- captive_DriverObject->DeviceType, /* DeviceType */
- captive_DriverObject->DeviceCharacteristics, /* DeviceCharacteristics */
- FALSE, /* Exclusive */
- &DeviceObject); /* DeviceObject */
- g_return_val_if_fail(NT_SUCCESS(err),FALSE);
-
- /* Currently we are !DO_BUFFERED_IO && !DO_DIRECT_IO and we must solve
- * being called with 'Irp->UserBuffer', 'Irp->AssociatedIrp.SystemBuffer' or 'Irp->MdlAddress'.
- */
- /* should be left from IoCreateDevice(DeviceCharacteristics) above: */
- if (captive_DriverObject->DeviceCharacteristics & FILE_REMOVABLE_MEDIA)
- g_assert(DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA);
- /* ignored: DeviceObject->StackSize */
- /* ignored: DeviceObject->AlignmentRequirement */
-
- /* from reactos/drivers/storage/scsiport/scsiport.c/ScsiPortCreatePortDevice() */
- captive_DriverObject->PortCapabilities.Length=sizeof(captive_DriverObject->PortCapabilities);
- captive_DriverObject->PortCapabilities.MaximumTransferLength=0x10000; /* 64KB */
- g_assert((captive_DriverObject->PortCapabilities.MaximumTransferLength%PAGE_SIZE)==0);
- captive_DriverObject->PortCapabilities.MaximumPhysicalPages=captive_DriverObject->PortCapabilities.MaximumTransferLength/PAGE_SIZE;
- captive_DriverObject->PortCapabilities.SupportedAsynchronousEvents=0;
- captive_DriverObject->PortCapabilities.AlignmentMask=1; /* no alignment required by us; speced as "integer multiple" */
- captive_DriverObject->PortCapabilities.TaggedQueuing=FALSE;
- captive_DriverObject->PortCapabilities.AdapterScansDown=FALSE;
- captive_DriverObject->PortCapabilities.AdapterUsesPio=TRUE;
- captive_DriverObject->PortCapabilities_check=captive_DriverObject->PortCapabilities; /* for g_assert() checking against foreign modifications */
-
- DeviceExtension=DeviceObject->DeviceExtension;
- DeviceExtension->MediaChangeCount=0;
- DeviceExtension->PhysicalDevice=DeviceObject; /* no real PhysicalDeviceObject */
- DeviceExtension->LockCount=0;
- DeviceExtension->DeviceNumber=0; /* corresponds to the # in "\\Device\\CdRom0" */
- /* ignored DeviceExtension->PortDeviceObject
- * as we are the final driver and we don't have any PortDeviceObject
- */
- DeviceExtension->PortCapabilities=&captive_DriverObject->PortCapabilities;
- DeviceExtension->StartingOffset.QuadPart=0;
- DeviceExtension->PartitionLength.QuadPart=captive_image_size;
- DeviceExtension->PortNumber=0;
- DeviceExtension->PathId=0;
- DeviceExtension->TargetId=0;
- DeviceExtension->Lun=0;
-
- /* expect 'captive_DriverObject->DiskGeometry.MediaType' */
- captive_DriverObject->DiskGeometry.TracksPerCylinder=64;
- captive_DriverObject->DiskGeometry.SectorsPerTrack=32;
- /* expect 'captive_DriverObject->DiskGeometry.BytesPerSector' */
- captive_DriverObject->DiskGeometry.Cylinders.QuadPart=captive_image_size
- /captive_DriverObject->DiskGeometry.BytesPerSector
- /captive_DriverObject->DiskGeometry.SectorsPerTrack
- /captive_DriverObject->DiskGeometry.TracksPerCylinder;
- /* 'DeviceExtension->DiskGeometry' is NULL! */
- captive_DriverObject->DiskGeometry_check=captive_DriverObject->DiskGeometry; /* for g_assert() checking against foreign modifications */
- DeviceExtension->DiskGeometry=&captive_DriverObject->DiskGeometry;
-
- DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL]=MajorFunction_DEVICE_CONTROL;
- DriverObject->MajorFunction[IRP_MJ_READ ]=MajorFunction_READ_WRITE;
- DriverObject->MajorFunction[IRP_MJ_WRITE ]=MajorFunction_READ_WRITE;
- DriverObject->MajorFunction[IRP_MJ_SHUTDOWN ]=MajorFunction_SHUTDOWN;
- DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS ]=MajorFunction_FLUSH_BUFFERS;
-
- return STATUS_SUCCESS;
-}
git://git.jankratochvil.net / captive.git / blobdiff